Global Patent Index - EP 1118761 A2

EP 1118761 A2 20010725 - Method of assessing operation of an internal combustion engine common-rail injection system

Title (en)

Method of assessing operation of an internal combustion engine common-rail injection system

Title (de)

Methode zum Festsetzen des Betriebs des Einspritzungsystems mit Verteilerleitung für einen Verbrennungsmotor

Title (fr)

Méthode d'évaluation du fonctionnement du système d'injection à rampe d'alimentation d'un moteur à combustion interne

Publication

EP 1118761 A2 20010725 (EN)

Application

EP 01101008 A 20010117

Priority

IT TO20000045 A 20000118

Abstract (en)

A method of assessing operation of a common-rail injection system (1) of an internal combustion engine (2); the injection system (1) having a number of injectors (5), a high-pressure circuit (6) supplying high-pressure fuel to the injectors (5), and a low-pressure circuit (7) supplying fuel to the high-pressure circuit (6); and the method including the steps of hydraulically isolating the high-pressure circuit (6) from the low-pressure circuit (7) and the engine (2); and assessing operation of the injection system (1) as a function of the fuel pressure drop in the high-pressure circuit (6). <IMAGE>

IPC 1-7

F02D 41/38; F02D 41/22

IPC 8 full level

F02D 41/22 (2006.01); F02D 41/38 (2006.01)

CPC (source: EP US)

F02D 41/221 (2013.01 - EP US); F02D 41/3836 (2013.01 - EP US); F02D 2041/224 (2013.01 - EP US); F02D 2200/0602 (2013.01 - EP US)

Citation (applicant)

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

EP 1118761 A2 20010725; EP 1118761 A3 20020206; EP 1118761 B1 20050413; DE 60109966 D1 20050519; DE 60109966 T2 20060309; ES 2237499 T3 20050801; IT 1319633 B1 20031020; IT TO20000045 A1 20010718; US 2001025626 A1 20011004; US 6502551 B2 20030107

DOCDB simple family (application)

EP 01101008 A 20010117; DE 60109966 T 20010117; ES 01101008 T 20010117; IT TO20000045 A 20000118; US 76174401 A 20010118